Use of Password Hash With Insufficient Computational Effort in Opencast - CVE-2020-5229
Published: January 29, 2020 / Updated: April 23, 2026
Vulnerability identifier: #VU127018
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-5229
CWE-ID: CWE-916
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to weak password hashing in password storage in opencast-kernel when an attacker has obtained password hashes from the database. A remote user can crack MD5 password hashes to disclose sensitive information.
The hashes are salted with the username instead of a random salt, which can cause identical hashes for users with the same username and password.
Affected software
Opencast
How to mitigate CVE-2020-5229
Install security update from vendor's website.
Opencast - update to 8.1